lister



3 Sheets- Sheet .1'.

(No Model.)

- J. & R. LISTER. MACHINE FOR DRESSING 0R BEAMING WARPS FOR LOOMS.

Patented Ap-r. 23, 189 5".

(No Model.) 3 Sheets-Sheet 2.

J. & R. LISTER. MACHINE FOR DRESSING 0B, BEAMING WARPS FOR LOOMS.

No. 538,080. Patented Apr. 23, 1895.

(No Model.) 3 Sheets-Sheet 3.

J. & R. LISTER. MACHINE FOR DRESSING 0R BEAMING WARPS FOR LOOMS. No. 538,080. Patented Apr. 23,1895.

TATES ATEN'I rr rca.

JAMES LISTER AND RICHARD LISTER, OF KEIGHLEY, ENGLAND.

SPECIFICATION forming part of Letters Patent No. 538,080, dated April 23, 1 895.

Application filed January 13, 1894:. Serial No.496,736. (No model.) Patented in England August 2, 1893, No- 14,786.

To all whom it may concern:

Be it known that we, JAMES LISTER and RICHARD LISTER, subjects of the Queen of Great Britain and Ireland, residing at Keighley, in the county of York, England, have invented a certain Improved Machine for Dressin g or Beaming Warps for Looms, (for which a patent has been granted to us by the Government of Great Britain and Ireland, No. 14,786, dated August 2, 1893,) of which the following is a specification.

This invention has for its object the dividing or dressing of warp threads prior to weaving the same into a fabric in an automatic simple and efficient manner by apparatus so arranged that, we are enabled to dispense with brushes and other rubbing instrumentshitherto used for the purpose of dividing the warp threads and to retain the major portion of the size deposited on the warp threads thereby to preserve the strength and weaving qualities of the warp.

In describing our invention in detail, reference is made to the accompanying drawings, in which- Figure 1 represents a side view of a warp dressing frame arranged according to our invention. A portion of the center upright is cut away to more clearly show the action of the apparatus. Fig. 2 is a view of the operating mechanism looking in the direction of the arrow 3 Fig. 3, asimilar view showing the heads, and Fig. 4 a detail hereinafter referred to.

The beam A upon which the dressed warp threads W are wound is mounted in any convenient manner between the uprights B. B. and driven from the shaft 0 through pulleys D. D. and spur gearing E in a manner common to warp dressing frames to which no claim is made as forming part of this invention.

The ball W of warp threads isformed and sized in the usual manner and the warp threads W conducted over bars F. F. and

roller G as hitherto, but instead of the warp.

by one portion of the warp threads reciprocating upward and the other portion downtward, by which operation the said threads are divided or separated.

The reciprocation of the healds H and warp threads W maybe accomplished by securing to the rotating shaft 0. a crank .I. and coupling same by a rod K to an arm L. mounted loosely upon a shaft N. upon which are secured pulleys 0. To the circumference of each is respectively attached a flexible strap P. such as leather the ends of which are connected to the healds H. and both kept in ten sion by a similar arrangement of pulleys O mounted on cross rail T.

Upon the shaft N is secured a quadrant U shown by detail Fig. 4E. and is prepared with two recesses U and U with either of which a sliding bar V mounted in the arm L may engage, so that by the oscillation of the arm L. the quadrant U is operated and shaft N rocked in its bearings, thus giving a reciprocating motion to the healds H and warp threads W. by which motion, the said threads are automatically and repeatedly divided or separated as they are traveling between roller G and fixed reed B. through which they pass to the rotating beam A. the warp threads being by preference kept divided close to the fixed reed R. by a rod S passing between the threads for the entire width of the warp.

The projection on the bar V engaging in one of the recesses in quadrant, U. may be changed from one recess U or U to the other by pressing the lever X hinged at X toward the arm Q of the said quadrant. An extension of the lever at X being engaged between projections on the said bar, causes the projecting piece on the bar to be raised clear of the notch. Then the said shaft may be turned by the said quadrant until the projection on the bar engages with the recess.

By changing the position of the projection on the bar V in the quadrant U. the motion transmitted to the healds is reversed, that is to say, those warp threads that formed the top portion of the shed, now form the bot tom, and the bottom threads the top of the shed, the reciprocating warp threads, by preference meeting in the center and not crossing each other.

In the drawings we have shown four healds H. but it will be obvious to persons skilledin weaving, that a less or greater number may be used for dividing or separating the warp threads with a greater or less degree of success.

The rising and falling motion imparted to the healds II is continuous so long as the beam A rotates, thereby dividing or separating the warp threads from each other without the intervention of a brush or other rubbing instrument, which as is well known, in addition to separating the healds, removes the size therefrom, thereby reducing the strength and weaving qualities of the warp.

hat we claim as our invention is In combination with the revolving beam,

the guide roller G, the reciprocating healds, the shaft N, the connections therefrom to the healds, thejquadrant U on the shaft, the le- Ver L, the sliding bar V carried thereby and 20 adapted to engage the quadrant at different points and the connections to the lever L for operating the same,substantiallyasdescribed.

In testimony whereof we have signed our names to this specification in the presence of 25 two subscribing witnesses.

JAMES LISTER. RICHARD LISTER.

Witnesses:

J OHN GILL, B. S. DANIELL. 

